Home / 83,664,331.20-125,748,439.20-72,578,865.60

Finding the Fourth Proportional to 83,664,331.20, 125,748,439.20 and 72,578,865.60

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Solution

The fourth proportional to 83,664,331.20, 125,748,439.20 and 72,578,865.60 is: 109,086,858.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,664,331.20 : 125,748,439.20 = 72,578,865.60 : x
  2. Step 2: Convert to fraction form
    83,664,331.20/125,748,439.20 = 72,578,865.60/x
  3. Step 3: Cross multiply
    83,664,331.20x = 125,748,439.20 × 72,578,865.60
  4. Step 4: Simplify right side
    83,664,331.20x = 9,126,679,068,106,570
  5. Step 5: Solve for x
    x = 9,126,679,068,106,570/83,664,331.20
  6. Step 6: Final answer
    x = 109,086,858.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.